21357510012

素因数分解:

$2^2\times 3^2\times {\mathrm{79}}^1\times {\mathrm{269}}^1\times {\mathrm{27917}}^1$

素因数の和:28275

約数の個数: 72

約数和(自身を含む): 54875620800

約数和(自身を除く): 33518110788

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 79, 158, 237, 269, 316, 474, 538, 711, 807, 948, 1076, 1422, 1614, 2421, 2844, 3228, 4842, 9684, 21251, 27917, 42502, 55834, 63753, 83751, 85004, 111668, 127506, 167502, 191259, 251253, 255012, 335004, 382518, 502506, 765036, 1005012, 2205443, 4410886, 6616329, 7509673, 8821772, 13232658, 15019346, 19848987, 22529019, 26465316, 30038692, 39697974, 45058038, 67587057, 79395948, 90116076, 135174114, 270348228, 593264167, 1186528334, 1779792501, 2373056668, 3559585002, 5339377503, 7119170004, 10678755006, 21357510012]

約数ペア:

[(1, 21357510012), (2, 10678755006), (3, 7119170004), (4, 5339377503), (6, 3559585002), (9, 2373056668), (12, 1779792501), (18, 1186528334), (36, 593264167), (79, 270348228), (158, 135174114), (237, 90116076), (269, 79395948), (316, 67587057), (474, 45058038), (538, 39697974), (711, 30038692), (807, 26465316), (948, 22529019), (1076, 19848987), (1422, 15019346), (1614, 13232658), (2421, 8821772), (2844, 7509673), (3228, 6616329), (4842, 4410886), (9684, 2205443), (21251, 1005012), (27917, 765036), (42502, 502506), (55834, 382518), (63753, 335004), (83751, 255012), (85004, 251253), (111668, 191259), (127506, 167502)]